What is the meaning of Topping?

present participle and gerund of top

Wonderful.

Assuming superiority; proud.

Any food item added on top of another, such as sprinkles on ice cream or pepperoni on pizza.

The act of cutting off the top of something.

The act of raising one extremity of a spar higher than the other.

Either of the cables that support the ends of a spar or boom.

The tail of an artificial fly.

topping (of food)

Source: wiktionary.org